Rainwater Harvesting & Flood Management –
Rural Police Headquarters, Ahmedabad
At the Rural Police Headquarters, Makarba- Ahmedabad, recurring waterlogging during monsoons had begun to significantly impact both campus usability and living conditions.
For a campus housing over 2,000 police families, it experienced heavy stormwater accumulation, with rainwater from across the campus accumulating in the parade ground—a natural low-lying zone. During peak monsoons, this led to prolonged waterlogging, affecting campus usability as well as the surrounding residential environment.
The Problem: Where stormwater became a challenge
The Spread across 70,000 sq. m, the campus generated significant stormwater runoff, with rainwater accumulating in the parade ground—a natural low-lying collection zone.
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Waterlogging reached up to 2 to 3 feet.
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The ground remained submerged for extended periods.
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Temporary loss of usability of key infrastructure.
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Continued impact on residential and operational areas
The Vision: Managing Water, Not Just Removing It
Rather than diverting water out of the site, the focus was to manage and utilize it within the campus itself.
The objective was to:
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Control and regulate stormwater movement.
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Reduce flooding and stagnation.
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Restore usability of the ground.
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Convert excess rainwater into a groundwater recharge resource.
Approach: Engineered Stormwater and Recharge System
Sujalaam carried out a detailed hydrogeological and site assessment, including rainfall analysis, runoff mapping, soil studies, and identification of clogging zones. This enabled the development of a site-specific, data-driven solution.
The implemented system integrates stormwater control with groundwater recharge:
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Swale & Collection System: A strategically designed collection depression - swale, along the parade ground boundary acts as the primary holding and filtration zone, slowing runoff and enabling controlled water movement.
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Recharge Wells: The collected water is diverted into 3 recharge wells, positioned at depths of approximately 120 meters, allowing deep aquifer recharge through natural percolation.
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Monitoring Systems: The system is reinforced with digital monitoring for real-time tracking and performance assessment.
Impact
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Significant reduction in waterlogging and flood duration
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Restoration of parade ground usability.
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Improved health and sanitation conditions.
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~90 lakh liters annual groundwater recharge
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Strengthening of local aquifer systems.
The campus has evolved into a water-resilient environment, where rainwater is no longer treated as a problem to be drained away, but as a resource that is captured, managed, and returned to the ground.
From waterlogging to water stewardship — where every drop is guided back to the earth, not lost, but returned with purpose.
